Safety Data Sheet

Classified According to OSHA Hazard Communication Standard (HCS) SECTION 1: Identification 1.1. Product Identifier Trade Name or Designation: Potassium , ACS Reagent Grade

Product Number: RDCP0560 Other Identifying Product Numbers: RDCP0560-100B1, RDCP0560-12F4, RDCP0560-250A6, RDCP0560-3A5, RDCP0560-500B1, RDCP0560-5C1

1.2. Recommended Use and Restrictions on Use General Laboratory Reagent

1.3. Details of the Supplier of the Safety Data Sheet

Company: Ricca Chemical Company Address: 448 West Fork Drive

Arlington, TX 76012 USA Telephone: 888-467-4222 1.4. Emergency Telephone Number (24 hours) CHEMTREC (USA) 800-424-9300 CHEMTREC (International) 1+ 703-527-3887 SECTION 2: Hazard(s) Identification

2.1. Classification of the Substance or Mixture For the full text of the Hazard and Precautionary Statements listed below, see Section 16.

Hazard Hazard Class Category Statements Precautionary Statements: Eye Damage / Irritation Category 2B H320 P264, P305+P351+P338, P337+P313 Skin Sensitizer Category 1 H317 P261, P272, P280, P302+P352, P332+P313, P321, P363, P501 Reproductive Toxicity Category 2 H361 P201, P202, P280, P308+P313, P405, P501 Specific Target Organs/Systemic Toxicity Following Repeated Category 1 H372 P260, P264, P270, P314, P501 Exposure Hazardous to the Aquatic Environment (Chronic) Category 2 H411 P273, P391, P501

Product Number: RDCP0560 Page 1 of 12 Safety Data Sheet

2.2. GHS Label Elements Pictograms:

Signal Word: Danger Hazard Statements: Hazard Number Hazard Statement H317 May cause an allergic skin reaction. H320 Causes eye irritation. H361 Suspected of damaging fertility or the unborn child. H372 Causes damage to organs through prolonged or repeated exposure. H411 Toxic to aquatic life with long lasting effects.

Product Number: RDCP0560 Page 2 of 12 Safety Data Sheet

Precautionary Statements:

Precautionary Number Precautionary Statement P201 Obtain special instructions before use. P202 Do not handle until all safety precautions have been read and understood. P260 Do not breathe dust/fumes. P261 Avoid breathing dust/fumes. P264 Wash arms, hands and face thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P272 Contaminated work clothing must not be allowed out of the workplace. P273 Avoid release to the environment. P280 Wear protective gloves and eye protection. P302+P352 IF ON SKIN: Wash with plenty of soap and water. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P308+P313 IF exposed or concerned: Get medical attention. P314 Get medical attention if you feel unwell. P321 Specific treatment (Wash areas of contact with water). P332+P313 If skin irritation occurs: Get medical attention. P337+P313 If eye irritation persists: Get medical attention. P363 Wash contaminated clothing before reuse. P391 Collect spillage. P405 Store locked up. P501 Dispose of contents in accordance with local, state, federal and international regulations. 2.4. Hazards not Otherwise Classified or Covered by GHS Data not available.

SECTION 3: Composition / Information on Ingredients

3.1. Components of Substance or Mixture Chemical Name Formula Molecular Weight CAS Number Weight% Potassium Iodide KI 166.00 g/mol 7681-11-0 100.00

Product Number: RDCP0560 Page 3 of 12 Safety Data Sheet

SECTION 4: First-Aid Measures

4.1. General First Aid Information Eye Contact: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. May cause irritation, redness, pain, and tearing. Inhalation: Not expected to require first aid. If necessary, remove to fresh air. Skin Contact: IF ON SKIN: Wash with plenty of soap and water. May cause irritation, redness, and pain. Ingestion: Dilute immediately with water or milk. Induce vomiting. Call a physician. 4.2. Most Important Symptoms and Effects, Acute and Delayed May cause an allergic skin reaction. Suspected of damaging fertility or the unborn child. Causes damage to organs through prolonged or repeated exposure. May cause irritation to the eyes, skin and respiratory tract. Wash areas of contact with water. Call a physician if irritation develops. EYE CONTACT: May cause irritation, redness, pain, and tearing. SKIN CONTACT: May cause irritation, redness, and pain. CHRONIC EFFECTS / CARCINOGENICITY: Chronic ingestion of may produce "iodism," which may be manifested by skin rash, running nose, headache and irritation of mucous membranes. Weakness, anemia, loss of weight, and general depression may also occur. 4.3. Medical Attention or Special Treatment Needed Specific treatment (Wash areas of contact with water). Irrigate immediately with large quantity of water for at least 15 minutes. Call a physician if irritation develops. Remove to fresh air. Give artificial respiration if necessary. If breathing is difficult, give . Wash areas of contact with soap and water for at least 15 minutes. Call a physician if irritation develops. Dilute immediately with water or milk. Induce vomiting. Call a physician.

SECTION 5: Fire-Fighting Measures

5.1. Extinguishing Media Use any means suitable for extinguishing surrounding fire. 5.2. Specific Hazards Arising from the Substance or Mixture Not considered to be a fire or explosion hazard. 5.3. Special Protective Equipment for Firefighters Use protective clothing and breathing equipment appropriate for the surrounding fire.

SECTION 6: Accidental Release Measures

6.1. Personal Precautions, Protective Equipment and Emergency Procedures Wear protective gloves and eye protection. 6.2. Cleanup and Containment Methods and Materials Small amounts may be flushed to the drain with excess water.

Product Number: RDCP0560 Page 4 of 12 Safety Data Sheet

SECTION 7: Handling and Storage 7.1. Precautions for Safe Handling and Storage Conditions Store locked up. As with all chemicals, wash hands thoroughly after handling. Avoid contact with eyes and skin. Protect from physical damage. Keep in tightly closed containers in a cool, dry area.

SECTION 8: Exposure Controls / Personal Protection 8.1 Control Parameters

Chemical Name Limit Type Country Exposure Limit Information Source

Potassium Iodide (7681-11-0) TLV-TWA USA 0.01 ppm TWA (inhalable ACGIH - Threshold Limit Values - Time fraction and vapor) Weighted Averages (TLV-TWA) 8.2. Exposure Controls Engineering Controls: No specific controls are needed. Normal room ventilation is adequate. Respiratory Protection: Normal room ventilation is adequate. Skin Protection: Wear protective gloves and eye protection. Chemical resistant gloves. Eye Protection: Wear protective gloves and eye protection. Safety glasses or goggles. 8.3. Personal Protective Equipment Wear protective gloves and eye protection. Normal room ventilation is adequate. Chemical resistant gloves. Safety glasses or goggles.

Product Number: RDCP0560 Page 5 of 12 Safety Data Sheet

SECTION 9: Physical and Chemical Properties

9.1. Basic Physical and Chemical Properties

Appearance: Colorless/white solid Physical State: Solid Odor: Data not available. Odor Threshold: Data not available. pH: 6.00 - 9.20 Melting/Freezing Point: Approximately 0°C Initial Boiling Point/Range: Approximately 1330°C - Approximately 1330°C Flash Point: Data not available. Evaporation Rate: Data not available. Flammability: Data not available. Flammability/Explosive Limits: Data not available. Vapor Pressure: Data not available. Vapor Density: Data not available. Relative Density: 3.12 Solubility: Data not available. Partition Coefficient: Data not available. Auto-Ignition Temperature: Data not available. Decomposition Temperature: Data not available. Viscosity: Data not available. Explosive Properties: Data not available. Oxidizing Properties: Data not available.

SECTION 10: Stability and Reactivity

10.1. Reactivity and Chemical Stability Stable under ordinary conditions of use and storage. On long exposure to air becomes yellow due to release of iodine. 10.2. Possibility of Hazardous Reactions Data not available. 10.3. Conditions to Avoid and Incompatible Materials Diazonium salts; diisopropyl peroxydicarbonate; oxidants; bromine and trifluorides; ; calomel (mercurous chloride); potassium chlorate; metallic salts; tartaric and other acids.

Product Number: RDCP0560 Page 6 of 12 Safety Data Sheet

10.4. Hazardous Decomposition Products Will not occur.

SECTION 11: Toxicological Information 11.1. Information on Toxicological Effects Acute Toxicity - Oral Exposure: Not applicable. Acute Toxicity - Dermal Exposure: Not applicable. Acute Toxicity - Inhalation Exposure: Not applicable. Acute Toxicity - Other Information: LD50, Oral, Rat: no information found. Investigated as a mutagen and reproductive effector.. Skin Corrosion and Irritation: Not applicable. Serious Eye Damage and Irritation: Causes eye irritation. Wash arms, hands and face thoroughly after handling. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. Respiratory Sensitization: Not applicable. Skin Sensitization: May cause an allergic skin reaction. Avoid breathing dust/fumes. Contaminated work clothing must not be allowed out of the workplace. Wear protective gloves and eye protection. IF ON SKIN: Wash with plenty of soap and water. If skin irritation occurs: Get medical attention. Specific treatment (Wash areas of contact with water). Wash contaminated clothing before reuse . Dispose of contents in accordance with local, state, federal and international regulations. Germ Cell Mutagenicity: Not applicable. Carcinogenicity: Not applicable. Reproductive Toxicity: Suspected of damaging fertility or the unborn child. Obtain special instructions before use. Do not handle until all safety precautions have been read and understood. Wear protective gloves and eye protection. IF exposed or concerned: Get medical attention. Store locked up. Dispose of contents in accordance with local, state, federal and international regulations. Specific Target Organ Toxicity from Single Exposure: Not applicable.

Product Number: RDCP0560 Page 7 of 12 Safety Data Sheet

Specific Target Organ Toxicity from Repeated Exposure: Causes damage to organs through prolonged or repeated exposure. Do not breathe dust/fumes. Wash arms, hands and face thoroughly after handling. Do not eat, drink or smoke when using this product. Get medical attention if you feel unwell. Dispose of contents in accordance with local, state, federal and international regulations. Aspiration Hazard: Not applicable. Additional Toxicology Information: Data not available.

SECTION 12: Ecological Information 12.1. Ecotoxicity Toxic to aquatic life with long lasting effects. Avoid release to the environment. Collect spillage. Dispose of contents in accordance with local, state, federal and international regulations. 12.2. Persistence and Degradability Data not available. 12.3. Bioaccumulative Potential Data not available. 12.4. Mobility in Soil Data not available. 12.5. Other Adverse Ecological Effects Data not available.

SECTION 13: Disposal Considerations

13.1. Waste Treatment Methods Data not available.

Product Number: RDCP0560 Page 8 of 12 Safety Data Sheet

SECTION 14: Transportation Information

14.1. Transportation by Land-Department of Transportation (DOT, United States of America)

Not regulated according to DOT Regulations.

14.2. Transportation by Air - International Air Transport Association (IATA)

Not regulated according to IATA Dangerous Goods Regulations.

14.3 Transportation of Dangerous Goods (TDG, Canada)

Not regulated according to TDG Regulations.

Product Number: RDCP0560 Page 9 of 12 Safety Data Sheet

SECTION 15: Regulatory Information

15.1. Occupational Safety and Health Administration (OSHA) Hazards Not listed. 15.2. Superfund Amendments and Reauthorization Act (SARA) 302 Extremely Hazardous Substances Not listed. 15.3. Superfund Amendments and Reauthorization Act (SARA) 311/312 Hazardous Chemicals Not listed. 15.4. Superfund Amendments and Reauthorization Act (SARA) 313 Toxic Release Inventory (TRI) Not listed. 15.5. Massachusetts Right-to-Know Substance List Not listed. 15.6. Pennsylvania Right-to-Know Hazardous Substances Not listed. 15.7. New Jersey Worker and Community Right-to-Know Components Not listed. 15.8. California Proposition 65 Not listed. 15.9. Canada Domestic Substances List / Non-Domestic Substances List (DSL/NDSL) Potassium Iodide (CAS # 7681-11-0): Present (DSL) 15.10. United States of America Toxic Substances Control Act (TSCA) List Potassium Iodide (CAS # 7681-11-0): Present 15.11. European Inventory of Existing Commercial Chemical Substances (EINECS), European List of Notified Chemical Substances (ELINCS), and No Longer Polymers (NLP) Potassium Iodide (CAS # 7681-11-0): 231-659-4

Product Number: RDCP0560 Page 10 of 12 Safety Data Sheet

SECTION 16: Other Information

16.1. Full Text of Hazard Statements and Precautionary Statements May cause an allergic skin reaction. Causes eye irritation. Suspected of damaging fertility or the unborn child. Causes damage to organs through prolonged or repeated exposure. Toxic to aquatic life with long lasting effects.

Obtain special instructions before use. Do not handle until all safety precautions have been read and understood. Do not breathe dust/fumes. Wash arms, hands and face thoroughly after handling. Do not eat, drink or smoke when using this product. Contaminated work clothing must not be allowed out of the workplace. Avoid release to the environment. Wear protective gloves and eye protection.

IF ON SKIN: Wash with plenty of soap and water. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF exposed or concerned: Get medical attention. Get medical attention if you feel unwell. Specific treatment (Wash areas of contact with water). If skin irritation occurs: Get medical attention. If eye irritation persists: Get medical attention. Wash contaminated clothing before reuse. Collect spillage.

Store locked up.

Dispose of contents in accordance with local, state, federal and international regulations.

16.2. Miscellaneous Hazard Classes Canadian Carcinogenicity Hazard Class: Not Applicable. Physical Hazards Not Otherwise Classified (PHNOC): Not Applicable. Health Hazards Not Otherwise Classified (HHNOC): Not Applicable. Biohazardous Infectious Materials Hazard Class: Not Applicable. 16.3. National Fire Protection Association (NFPA) Rating

Health: 2 0 Flammability: 0 Reactivity: 0 2 0 Special Hazard:

16.4. Document Revision

Last Revision Date: 2021-08-12

Product Number: RDCP0560 Page 11 of 12 DISCLAIMER

When handled properly by qualified personnel, the product described herein does not present a significant health or safety hazard. Alteration of its characteristics by concentration, evaporation, addition of other substances, or other means may present hazards not specifically addressed herein and which must be evaluated by the user. The information furnished herein is believed to be accurate and represents the best data currently available to us . No warranty, expressed or implied, is made and RICCA CHEMICAL COMPANY assumes no legal responsibility or liability whatsoever resulting from its use.

Product Number: RDCP0560 Page 12 of 12